Reset Screen moved to ScreenContext.

chrome/browser/chromeos/login/screens/reset_screen.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_RESET_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_RESET_SCREEN_H_
 
 #include <string>
 
 #include "base/basictypes.h"

[dzhioev (left Google), 2015/02/11 12:38:29]

What this include is needed for?

[merkulova, 2015/02/11 15:07:17]

Removed.

 #include "base/compiler_specific.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "chrome/browser/chromeos/login/help_app_launcher.h"
 #include "chrome/browser/chromeos/login/screens/base_screen.h"

[dzhioev (left Google), 2015/02/11 12:38:29]

Not needed. 

[merkulova, 2015/02/11 15:07:17]

Done.

-#include "chrome/browser/chromeos/login/screens/reset_screen_actor.h"
+#include "chrome/browser/chromeos/login/screens/reset_model.h"
+#include "chromeos/dbus/update_engine_client.h"
+
 
 namespace chromeos {
 
+class ErrorScreen;
+class ResetView;
+
 // Representation independent class that controls screen showing reset to users.
-class ResetScreen : public BaseScreen, public ResetScreenActor::Delegate {
+class ResetScreen : public ResetModel,
+                    public UpdateEngineClient::Observer {
  public:
   ResetScreen(BaseScreenDelegate* base_screen_delegate,
-              ResetScreenActor* actor);
+              ResetView* view);
   ~ResetScreen() override;
 
-  // BaseScreen implementation:
+  // ResetModel implementation:
   void PrepareToShow() override;
   void Show() override;
   void Hide() override;
-  std::string GetName() const override;
+  void OnCancel() override;
+  void OnPowerwash() override;
+  void OnRestart() override;
+  void OnToggleRollback() override;
+  void OnShowConfirm() override;
+  void OnLearnMore() override;
+  void OnViewDestroyed(ResetView* view) override;
+  void OnUserAction(const std::string& action_id) override;
 
-  // ResetScreenActor::Delegate implementation:
-  void OnExit() override;
-  void OnActorDestroyed(ResetScreenActor* actor) override;
+  // UpdateEngineClient::Observer implementation:
+  void UpdateStatusChanged(const UpdateEngineClient::Status& status) override;
+
+  void OnRollbackCheck(bool can_rollback);
 
  private:
-  ResetScreenActor* actor_;
+
+  enum State {
+    STATE_RESTART_REQUIRED = 0,
+    STATE_REVERT_PROMISE,
+    STATE_POWERWASH_PROPOSAL,
+    STATE_ERROR
+  };
+
+  // Returns an instance of the error screen.
+  ErrorScreen* GetErrorScreen();
+
+  ResetView* view_;
+
+  // Help application used for help dialogs.
+  scoped_refptr<HelpAppLauncher> help_app_;

[dzhioev (left Google), 2015/02/11 12:38:29]

Do you now why help_app_ is a scoped_refptr, and not a simple scoped_ptr?

[merkulova, 2015/02/11 15:07:17]

Because some other screens might use it.

[dzhioev (left Google), 2015/02/12 12:51:58]

First of all, help_app_ is a private field without any getters. Second, 
HelpAppLauncher is an utility class, so any screen can create its own copy.
Please, change to scoped_ptr.

[merkulova, 2015/02/12 13:37:37]

is_refcounted_type_and_needs_scoped_refptr as HelpAppLauncher is inheriting
base::RefCountedThreadSafe<HelpAppLauncher>

+
+  base::WeakPtrFactory<ResetScreen> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ResetScreen);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_RESET_SCREEN_H_